Re: [boost] Re: Loki SmartPtr questions

From: Peter Dimov (pdimov_at_[hidden])
Date: 2002-01-15 08:43:14

From: "Beman Dawes" <bdawes_at_[hidden]>
> At 11:06 AM 1/14/2002, rogeeff wrote:
>
>  >Ideally Storage Policy manages HOW to allocate/deallocate resource,
>  >while Ownership policy manages WHEN to do so.
>  >
>  >If we will stick to this definition, we will never need to
>  >interpolicy (Storage-Ownership at least) communication.
>
> They need some communication, although it may be indirect via the
framework
> class.  Thus OwnershipPolicy::Release() tells the framework (via bool
> return) that StoragePolicy::Destroy() should be called.
>
> While StoragePolicy and OwnershipPolicy are mostly independent and
> orthogonal, it isn't quite 100%.

Actually I think that the Storage and the Ownership policies are not
orthogonal. The bool communication is an indication of this.

A possible alternative would be to parameterize the Ownership policies that
need to 'delete p' on the deallocator type.

--
Peter Dimov
Multi Media Ltd.